Tobio Kageyama, the ever-intense and determined volleyball player, found himself in a difficult situation. The day before his girlfriend's birthday, he had planned a secret surprise, but to keep it a surprise, he had to distance himself from her. Seeing the sadness on her face tugged at his heart, but he knew he had to keep his plan a secret.

His girlfriend, on the other hand, was left feeling confused and worried. She couldn't understand why Kageyama was suddenly so cold and distant, and her mind immediately went to the worst possible explanations.